EUA2011A
DESCRIPTION
The EUA2011A is a high efficiency, 2.5W mono class-D audio power amplifier. A new developed filterless PWM modulation architecture further reduces EMI and THD+N, as well as eliminates the LC output filter, reducing external ponent count, system cost, and simplifying design. Operating in a single 5V supply, EUA2011A is capable of driving 4Ω speaker load at a continuous average output of 2.5W/10% THD+N or 2W/1% THD+N. The EUA2011A has high efficiency with speaker load pared to a typical class AB amplifier. With a 3.6V supply driving an 8Ω speaker , the efficiency for a 400m W power level is 84%. In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the EUA2011A. The gain of EUA2011A is externally configurable which allows independent gain control from multiple sources by summing signals from separate sources. The EUA2011A is available in space-saving WCSP package.
FEATURES z z z z z z z z z z z z z Unique Modulation Scheme...
